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Finding the Fourth Proportional to 681,525.51, 940,511.43 and 375,612.81

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Solution

The fourth proportional to 681,525.51, 940,511.43 and 375,612.81 is: 518,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,525.51 : 940,511.43 = 375,612.81 : x
  2. Step 2: Convert to fraction form
    681,525.51/940,511.43 = 375,612.81/x
  3. Step 3: Cross multiply
    681,525.51x = 940,511.43 × 375,612.81
  4. Step 4: Simplify right side
    681,525.51x = 353,268,141,059.42
  5. Step 5: Solve for x
    x = 353,268,141,059.42/681,525.51
  6. Step 6: Final answer
    x = 518,349.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.